The consumer price index rose 2.8% in February from 12 months earlier, a deceleration from January. Steel and aluminum tariffs took effect Wednesday. Economists fear that an escalating trade war could stall or reverse progress on inflation.

Economists are bracing for intensifying price pressures and slower growth, posing a challenge for the Federal Reserve.

U.S. consumer prices increased moderately in February as higher shelter costs were partially offset by cheaper airline fares, giving the Federal Reserve room to keep interest rates unchanged next week while monitoring the economic impact of a trade war.